Variability of PCB burden in 5 fish and sharks species of the French Mediterranean continental slope

Type Article
Date 2016-05
Language English
Author(s) Cresson PierreORCID1, 2, Fabri Marie-Claire1, Miralles Francoise Marco1, Dufour Jean-Louis2, Elleboode Romain2, Sevin Karine2, Mahe KeligORCID2, Bouchoucha Marc1
Affiliation(s) 1 : IFREMER, Lab Environm Ressources Provence Azur Corse, Ctr Mediterranee, CS 20330, F-83507 La Seyne Sur Mar, France.
2 : IFREMER, Channel & North Sea Fisheries Res Unit, Ctr Manche Mer Nord, BP 669, F-62321 Boulogne Sur Mer, France.
Source Environmental Pollution (0269-7491) (Elsevier Sci Ltd), 2016-05 , Vol. 212 , P. 374-381
DOI 10.1016/j.envpol.2016.01.044
WOS© Times Cited 2
Keyword(s) Bioaccumulation, Continental slope, Gulf of Lions, PCB
Abstract Despite being generally located far from contamination sources, deep marine ecosystems are impacted by chemicals like PCB. The PCB contamination in five fish and shark species collected in the continental slope of the Gulf of Lions (NW Mediterranean Sea) was measured, with a special focus on intra- and interspecific variability and on the driving factors. Significant differences occurred between species. Higher values were measured in Scyliorhinus canicula, Galeus melastomus and Helicolenus dactylopterus and lower values in Phycis blennoides and Lepidorhombus boscii. These differences might be explained by specific abilities to accumulate and eliminate contaminant, mostly through cytochrome P450 pathway. Interindividual variation was also high and no correlation was observed between contamination and length, age or trophic level. Despite its major importance, actual bioaccumulation of PCB in deep fish is not as documented as in other marine ecosystems, calling for a better assessment of the factors driving individual bioaccumulation mechanisms and originating high variability in PCB contamination.
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Cresson Pierre, Fabri Marie-Claire, Miralles Francoise Marco, Dufour Jean-Louis, Elleboode Romain, Sevin Karine, Mahe Kelig, Bouchoucha Marc (2016). Variability of PCB burden in 5 fish and sharks species of the French Mediterranean continental slope. Environmental Pollution, 212, 374-381. Publisher's official version : https://doi.org/10.1016/j.envpol.2016.01.044 , Open Access version : https://archimer.ifremer.fr/doc/00313/42421/